trying to determine correct url_for behavior

test.pl

#!/usr/bin/env perl

use strict;
use warnings;

use utf8;

use Test::More 'no_plan';

use Test::Mojo;

# Load Mojolicious::Lite via ojo
use ojo;

# Set a base URL. All generated URLs should be
# relative to this path.
app->hook( before_dispatch => sub {
    shift->req->url->base(Mojo::URL->new(q{http://kraih.com/sandbox}));
});

# Test helpers
# "Bender, damage report.
# The auxiliary power's out, and they spilled my cocktail."

# Get /
get '/' => 'root';

get '/another-place' => 'another-place';

get '/to-myself' => 'to-myself';

my $t = Test::Mojo->new;

$t->get_ok('/another-place')->content_is(join q{},
    "http://kraih.com/sandbox/to-myself\n",
    "/sandbox/to-myself\n",
    "/sandbox/to-myself\n",
);

$t->get_ok('/to-myself')->content_is(join q{},
    "http://kraih.com/sandbox/to-myself\n",
    "/sandbox/to-myself\n",
    "/sandbox/to-myself\n",
);

# GET /
# use to_string, just changing the arguments.
## Note: This is the current behavior of 28b90c
$t->get_ok('/')->content_is(join q{},
    "/sandbox/\n",
    "\n",
    "/sandbox/\n",
    "/sandbox/\n",
);


__DATA__
@@ another-place.html.ep
<% my $string_url = $self->url_for('to-myself'); =%>
<%= $string_url->to_abs() %>
<%= $string_url->to_rel() %>
<%= $string_url->to_string() %>

@@ to-myself.html.ep
<% my $string_url = $self->url_for('to-myself'); =%>
<%= $string_url->to_abs() %>
<%= $string_url->to_rel() %>
<%= $string_url->to_string() %>

@@ root.html.ep
<%= url_for() %>
<%= url_for '/'     %>
<%= url_for ''      %>
<%= url_for 'root'  %>

__END__